节理裂隙岩体渗流与应力耦合分析

Analysis of coupled seepage and stress fields in fractured rockmass

在总结已有的饱和非饱和渗流模型的基础上,把裂隙岩体看作是离散网络模型,分析研究了含节理裂隙岩体的非饱和渗流特性,建立了裂隙网络饱和非饱和渗流模型,并推导了控制方程.对节理裂隙岩体中外力对裂隙渗流的影响进行了分析研究,提出了渗流场应力场耦合的分析模型,推导出三维应力与裂隙水压力共同作用下一组平行裂隙组的渗流应力耦合关系式.

Based on saturated seepage flow and unsaturated seepage flow model,using the fracture network model,the unsaturated seepage flow characteristics of crack rock mass are analyzed,and the constitutive relation is established.The influence of stress on seepage is analyzed,and the seepagestress coupling model is put forward.The seepagestress coupling relationship of parallel cracks under the action of three dimensional stresses and pore pressure is set up.